CN116191263A - Intelligent distribution box for distribution facility based on Internet of things - Google Patents
Intelligent distribution box for distribution facility based on Internet of things Download PDFInfo
- Publication number
- CN116191263A CN116191263A CN202310293145.4A CN202310293145A CN116191263A CN 116191263 A CN116191263 A CN 116191263A CN 202310293145 A CN202310293145 A CN 202310293145A CN 116191263 A CN116191263 A CN 116191263A
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- CN
- China
- Prior art keywords
- distribution box
- main body
- heat dissipation
- water storage
- drain pipe
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
Abstract
The invention discloses an intelligent distribution box for distribution facilities based on the Internet of things, which relates to the field of distribution facilities and comprises a distribution box main body, wherein a water storage tank is arranged at the top of the distribution box main body, a rainy day heat dissipation mechanism is arranged at one side of the distribution box main body, a sunny day heat dissipation mechanism is arranged at the same side of the rainy day heat dissipation mechanism, a dust removal assembly is arranged at one side of the distribution box main body, the rainy day heat dissipation mechanism comprises a first water drain pipe arranged at one side of the distribution box main body, one end of the first water drain pipe is fixedly connected with the bottom of the water storage tank, and a second pressure valve is arranged at one end of the first water drain pipe at the bottom of the water storage tank. According to the invention, through designing the rainy day heat dissipation mechanism, the heat dissipation speed in the distribution box main body is increased and the temperature in the distribution box main body is reduced by utilizing the mutual coordination among the first drain pipe, the second pressure valve, the arc-shaped box, the rotating shaft, the spiral fan blades and the fan in the rainy day heat dissipation mechanism.
Description
Technical Field
The invention relates to the field of power distribution facilities, in particular to an intelligent power distribution box for an internet of things-based power distribution facility.
Background
The distribution box has the characteristics of small volume, simple installation, special technical performance, fixed position, unique configuration function, no limit of places, more common application, stable and reliable operation, high space utilization rate, less occupied area and environmental protection effect, is a control center for reasonably distributing electric energy for various components in a command power supply line, is a control link for reliably receiving an upper-end power supply and correctly feeding out load electric energy, is also a key for acquiring satisfaction of a user on power supply quality, improves the operation reliability of the power distribution box, and is a target for creating quality engineering.
However, the conventional distribution box generates a large amount of heat during long-time working, and a large amount of water sources are easily gathered on the ground when the distribution box encounters heavy rain weather, so that safety accidents are easily caused.
Disclosure of Invention
Based on the above, the invention aims to provide an intelligent distribution box for an internet of things-based distribution facility, so as to solve the technical problems in the background.
In order to achieve the above purpose, the present invention provides the following technical solutions: the intelligent distribution box for the distribution facility based on the Internet of things comprises a distribution box main body, wherein a water storage tank is arranged at the top of the distribution box main body, a rainy day heat dissipation mechanism is arranged at one side of the distribution box main body, a sunny day heat dissipation mechanism is arranged at the same side of the rainy day heat dissipation mechanism, and a dust removal assembly is arranged at one side of the distribution box main body;
the rainy day cooling mechanism is including installing a drain pipe in block terminal main part one side, a drain pipe one end with water storage tank bottom fixed connection, a drain pipe one end is located the second pressure valve is installed to the water storage tank bottom, a drain pipe outer wall one side fixed mounting has the arc box, arc box inner chamber one side rotates and is connected with the pivot, the pivot outside is located arc box inner chamber cover is equipped with helical blade, the pivot run through in arc box one side is fixed with the fan, fan outside fixed mounting has the ventilation fence, the ventilation fence is fixed in block terminal main part one side.
Preferably, return pipes are installed at two ends of the distribution box main body, the return pipes are attached to the distribution box main body, one ends of the return pipes are fixedly connected with the water storage box, and one ends of the return pipes are located at the bottom of the water storage box and are provided with first pressure valves.
Preferably, the sunny heat dissipation mechanism is including installing No. two drain pipes of a drain pipe one end are kept away from to block terminal main part one side, no. two drain pipes one end is located the water storage tank bottom is installed the third pressure valve, no. two drain pipe outer wall one side is fixed with the fixed sleeve, fixed sleeve inner chamber sliding connection has the movable plate, anodal conducting block is installed to movable plate one side, the negative pole conducting block is installed to fixed sleeve inner chamber bottom, movable plate opposite side fixedly connected with string, string other end fixed mounting has the dog, the dog is located No. two drain pipe inner chambers, the block terminal main part is located another group of ventilation fence is installed to fixed sleeve one side, ventilation fence one side fixed mounting has the motor case, the motor case opposite side with another group the pivot rotates to be connected, pivot outer wall and another group fan fixed mounting.
Preferably, a spring is arranged between the movable plate and one side of the inner cavity of the fixed sleeve, a hole is formed in one side of the inner cavity of the fixed sleeve, and the string penetrates through the hole to the inner cavity of the second drain pipe.
Preferably, the two groups of return pipes, the first water drain pipe and the second water drain pipe penetrate through the ground to the ground.
Preferably, the dust removal assembly comprises two groups of filter screens fixedly mounted on one side of the distribution box main body, the two groups of filter screens are fixedly mounted on one end of each of the two groups of filter screens, the two groups of filter screens are close to each other, the two groups of filter screens are provided with brushes on one side, and the brushes are attached to one side of each of the filter screens.
Preferably, four groups of support columns are arranged at four corners of the bottom of the distribution box main body, a bottom plate is arranged at the bottom of each support column, and the bottom plate is fixedly connected with the ground.
Preferably, shielding plates are arranged on four sides of the top of the water storage tank, two groups of fixing rods are arranged at the bottoms of each group of shielding plates, and the other ends of the fixing rods are fixedly connected with the water storage tank.
In summary, the invention has the following advantages:
1. according to the invention, by designing the rainy day heat dissipation mechanism, the heat dissipation speed in the distribution box main body is increased and the temperature in the distribution box main body is reduced by utilizing the mutual coordination among the first drain pipe, the second pressure valve, the arc-shaped box, the rotating shaft, the spiral fan blades and the fan in the rainy day heat dissipation mechanism;
2. according to the invention, the sunny heat dissipation mechanism is designed, and the mutual coordination among the second drain pipe, the third pressure valve, the fixed sleeve, the movable plate, the positive electrode conductive block, the negative electrode conductive block, the string, the stop block, the spring and the motor box in the sunny heat dissipation mechanism is utilized, so that the distribution box is suitable for any weather condition, the heat dissipation of the distribution box main body is realized, and the intelligent heat dissipation is embodied;
3. through the shielding plate of design for the block terminal main part runs into stormwater weather in the use and can not gather a large amount of water sources around the block terminal main part, and then reduces the probability that this kind of block terminal breaks down.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a front elevational view of the overall structure of the present invention;
FIG. 3 is a schematic view of the bottom structure of the water tank of the present invention;
FIG. 4 is a schematic view of a return pipe structure according to the present invention;
FIG. 5 is a schematic view of the internal structure of the ventilation bar of the present invention;
FIG. 6 is a partial cross-sectional view of the construction of the sunny heat dissipation mechanism of the present invention;
FIG. 7 is a schematic view of a spiral fan blade according to the present invention;
fig. 8 is a schematic view of the internal structure of the fixing sleeve of the present invention.
In the figure: 100. a distribution box main body; 200. a rainy day heat dissipation mechanism; 300. a sunny heat dissipation mechanism; 400. a dust removal assembly;
110. a support column; 120. a bottom plate; 130. a water storage tank; 140. a shielding plate; 150. a fixed rod;
210. a return pipe; 220. a first pressure valve; 230. a first drain pipe; 240. a second pressure valve; 250. an arc-shaped box; 260. a rotating shaft; 270. spiral fan blades; 280. a fan;
310. a second water draining pipe; 320. a third pressure valve; 330. a fixed sleeve; 340. a moving plate; 350. a positive electrode conductive block; 360. a negative electrode conductive block; 370. a string; 380. a stop block; 390. a spring; 3910. a ventilation rail; 3920. a motor case;
410. a filter screen; 420. a connecting rod; 430. a brush.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
Hereinafter, an embodiment of the present invention will be described in accordance with its entire structure.
The intelligent power distribution box for the power distribution facility based on the Internet of things comprises a power distribution box main body 100, wherein a water storage tank 130 is arranged at the top of the power distribution box main body 100, a rainy day heat dissipation mechanism 200 is arranged at one side of the power distribution box main body 100 at the bottom of the water storage tank 130, a sunny day heat dissipation mechanism 300 is arranged at the same side of the rainy day heat dissipation mechanism 200 at the power distribution box main body 100, and a dust removal assembly 400 is arranged at one side of the power distribution box main body 100;
this intelligent power distribution box is under stormwater weather, avoids gathering the water source in the bottom behind the stormwater through the shielding plate 140 that the top set up, collects the rainwater through the water storage tank 130 of top installation, dispels the heat to the power distribution box main part 100 through the rainy day heat dissipation mechanism 200, when no rainy weather, dispels the heat to the power distribution box main part 100 through the sunny heat dissipation mechanism 300, and the cooperation of rainy day heat dissipation mechanism 200 and sunny heat dissipation mechanism 300 removes dust the subassembly 400 and removes dust to the filter screen 410 surface.
The rainy day heat dissipation mechanism 200 includes a first drain pipe 230 that installs in block terminal main part 100 one side, a drain pipe 230 one end and water storage tank 130 bottom fixed connection, a drain pipe 230 one end is located water storage tank 130 bottom and installs second pressure valve 240, a drain pipe 230 outer wall one side fixed mounting has arc box 250, arc box 250 inner chamber one side rotates and is connected with pivot 260, the pivot 260 outside is located arc box 250 inner chamber cover and is equipped with spiral flabellum 270, pivot 260 runs through and is fixed with fan 280 in arc box 250 one side, fan 280 outside fixed mounting has ventilation fence 3910, ventilation fence 3910 is fixed in block terminal main part 100 one side.
When rainwater weather is met, water is stored through the water storage tank 130, after the water quantity reaches the pressure value of the second pressure valve 240, the valve is opened, rainwater enters the first drain pipe 230 at the moment, when the rainwater flows from the first drain pipe 230 to the top down, the rainwater can impact one side of the spiral fan blade 270 and can drive the spiral fan blade 270 to rotate, so that the rotating shaft 260 is driven to rotate, the fan 280 fixed with the rotating shaft 260 rotates together at the moment, the fan 280 is aligned with the ventilation opening to blow, and therefore the radiating speed of the distribution box main body 100 is accelerated, and the heat in the distribution box main body 100 is reduced.
Referring to fig. 1 and 4, return pipes 210 are installed at two ends of the main body 100 of the power distribution box, the return pipes 210 are attached to the main body 100 of the power distribution box, one end of each return pipe 210 is fixedly connected with the water storage tank 130, and a first pressure valve 220 is installed at one end of each return pipe 210 located at the bottom of the water storage tank 130.
When the water amount in the water storage tank 130 reaches the pressure value of the first pressure valve 220, the valve is opened, rainwater flows down from the return pipe 210, the return pipe 210 is attached to the surface of the main body 100 of the power distribution box, and further heat dissipation is performed on the main body 100 of the power distribution box, so that the temperature inside the main body 100 of the power distribution box is reduced.
Referring to fig. 1, 6 and 8, the sunny heat dissipation mechanism 300 includes a second drain pipe 310 installed at one side of the main body 100 of the distribution box and far away from one end of the first drain pipe 230, a third pressure valve 320 is installed at one end of the second drain pipe 310 at the bottom of the water storage tank 130, a fixed sleeve 330 is fixed at one side of the outer wall of the second drain pipe 310, an inner cavity of the fixed sleeve 330 is slidably connected with a moving plate 340, a positive electrode conductive block 350 is installed at one side of the moving plate 340, a negative electrode conductive block 360 is installed at the bottom of the inner cavity of the fixed sleeve 330, a string 370 is fixedly connected with the other side of the moving plate 340, a stop block 380 is fixedly installed at the other end of the string 370 and located in the inner cavity of the second drain pipe 310, another group of ventilation bars 3910 is fixedly installed at one side of the distribution box main body 100 and located at one side of the fixed sleeve 330, a motor box 3920 is rotatably connected with another group of rotating shafts 260, and the outer walls of the rotating shafts 260 are fixedly installed with another group of fans 280.
When rainless weather, the motor inside the motor box 3920 is controlled by the contact of the positive electrode conductive block 350 and the negative electrode conductive block 360, so that the rotating shaft 260 is driven to rotate, the fan 280 is driven to rotate, the ventilation opening is aligned to blow, the heat dissipation speed of the power distribution box main body 100 is increased, the heat inside the power distribution box main body 100 is reduced, when rainy weather is met, the water in the water storage box 130 reaches a certain level, the third pressure valve 320 is opened, rainwater flows from top to bottom in the second water discharge pipe 310, the stop block 380 is pushed to move downwards, the string 370 is driven to move together, the moving plate 340 in the fixed sleeve 330 is driven to move, the positive electrode conductive block 350 and the negative electrode conductive block 360 are separated, the motor inside the motor box 3920 stops rotating, and the rainy weather heat dissipation mechanism 200 starts working.
Referring to fig. 6 and 8, a spring 390 is installed between the movable plate 340 and one side of the inner cavity of the fixed sleeve 330, a hole is formed on one side of the inner cavity of the fixed sleeve 330, and a string 370 is inserted through the hole to the inner cavity of the second drain pipe 310.
When the stopper 380 moves down, the moving plate 340 is driven to move together, at this time, the spring 390 is stretched, and when the rain stops, the spring 390 drives the moving plate 340 to reset through its own elastic force, so that the positive electrode conductive block 350 and the negative electrode conductive block 360 are contacted again, and the sunny heat dissipation mechanism 300 is started.
Referring to fig. 1, the two return pipes 210, the first drain pipe 230 and the second drain pipe 310 extend through the ground to the ground.
Rainwater stored in the water storage tank 130 is discharged into the ground from the return pipe 210, the first drain pipe 230, and the second drain pipe 310.
Referring to fig. 5 and 7, the dust removing assembly 400 includes two sets of filter screens 410 fixedly installed on one side of the main body 100 of the power distribution box, a connecting rod 420 is fixedly installed on one end of the two sets of rotating shafts 260 near the filter screens 410, brushes 430 are installed on one sides of the two sets of connecting rods 420, and the brushes 430 are attached to one side of the filter screens 410.
When the rotating shaft 260 rotates, the connecting rod 420 is driven to rotate, so as to drive the brush 430 to rotate together, thereby scraping off the dust adhered on the filter screen 410, preventing the filter screen 410 from being blocked and affecting the heat dissipation of the main body 100 of the distribution box.
Referring to fig. 2, four sets of support columns 110 are installed at four corners of the bottom of the main body 100, a bottom plate 120 is installed at the bottom of the support columns 110, and the bottom plate 120 is fixedly connected with the ground.
The support column 110 lifts the distribution box main body 100 to a certain height, avoids the direct contact of the distribution box main body 100 with the ground, and further avoids the influence of rainwater weather on the distribution box main body 100.
Referring to fig. 3, the top four sides of the water storage tank 130 are respectively provided with a shielding plate 140, the bottom of each shielding plate 140 is respectively provided with two groups of fixing rods 150, and the other end of each group of fixing rods 150 is fixedly connected with the water storage tank 130.
The shielding plate 140 can prevent the distribution box main body 100 from gathering a large amount of water sources around the distribution box main body 100 when encountering heavy rain in the use process, so that the probability of faults of the distribution box is reduced.
When the intelligent distribution box is used in heavy rain, the water source is prevented from being gathered at the bottom after heavy rain through the shielding plate 140 arranged at the top, rainwater is collected through the water storage box 130 arranged at the top, the distribution box main body 100 is cooled through the rainy day cooling mechanism 200, after the water quantity in the water storage box 130 reaches the pressure value of the second pressure valve 240, the valve is opened, the rainwater enters the first water drain pipe 230, when the rainwater flows from the first water drain pipe 230 to the top, the rainwater can impact one side of the spiral fan blade 270 and can drive the spiral fan blade 270 to rotate, the rotating shaft 260 is driven to rotate, the fan 280 rotates together with the fan 280 fixed by the rotating shaft 260, the fan 280 is aligned with the ventilation opening to blow, so that the cooling speed of the distribution box main body 100 is increased, the heat inside the distribution box main body 100 is reduced, when no rainwater weather exists, the distribution box main body 100 is cooled through the sunny day cooling mechanism 300, and the rainy day cooling mechanism 200 and the sunny day cooling mechanism 300 are matched with the dust removing assembly 400 to remove dust on the surface of the filter screen 410.
Although embodiments of the invention have been shown and described, the detailed description is to be construed as exemplary only and is not limiting of the invention as the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and modifications, substitutions, variations, etc. may be made in the embodiments as desired by those skilled in the art without departing from the principles and spirit of the invention, provided that such modifications are within the scope of the appended claims.
Claims (8)
1. Intelligent power distribution box for power distribution facilities based on internet of things, comprising a power distribution box main body (100), and characterized in that: the novel solar energy power distribution box comprises a power distribution box body (100), and is characterized in that a water storage box (130) is arranged at the top of the power distribution box body (100), a rain day heat dissipation mechanism (200) is arranged at one side of the power distribution box body (100) at the bottom of the water storage box (130), a sunny day heat dissipation mechanism (300) is arranged at the same side of the rain day heat dissipation mechanism (200) at the power distribution box body (100), and a dust removal assembly (400) is arranged at one side of the power distribution box body (100);
the rainy day cooling mechanism (200) is including installing drain pipe (230) of a block terminal main part (100) one side, drain pipe (230) one end with water storage tank (130) bottom fixed connection, drain pipe (230) one end is located water storage tank (130) bottom is installed second pressure valve (240), drain pipe (230) outer wall one side fixed mounting has arc box (250), arc box (250) inner chamber one side rotates and is connected with pivot (260), the pivot (260) outside is located arc box (250) inner chamber cover is equipped with spiral flabellum (270), pivot (260) run through in arc box (250) one side is fixed with fan (280), fan (280) outside fixed mounting has ventilation rail (3910), ventilation rail (3910) are fixed in block terminal main part (100) one side.
2. The intelligent distribution box for an internet of things-based distribution facility according to claim 1, wherein: the utility model discloses a novel electric power distribution box, including block terminal main part (100), right-back tube (210) are all installed at block terminal main part (100) both ends, right-back tube (210) with block terminal main part (100) are laminated mutually, right-back tube (210) one end with water storage tank (130) fixed connection, right-back tube (210) one end is located first pressure valve (220) are installed to water storage tank (130) bottom.
3. The intelligent distribution box for an internet of things-based distribution facility according to claim 1, wherein: the sunny heat dissipation mechanism (300) is including installing distribution box main part (100) one side is kept away from No. two drain pipes (310) of No. one drain pipe (230) one end, no. two drain pipes (310) one end is located No. two drain pipes (130) bottom is installed third pressure valve (320), no. two drain pipes (310) outer wall one side is fixed with fixed sleeve (330), fixed sleeve (330) inner chamber sliding connection has movable plate (340), positive pole conducting block (350) are installed to movable plate (340) one side, negative pole conducting block (360) are installed to fixed sleeve (330) inner chamber bottom, movable plate (340) opposite side fixedly connected with string (370), string (370) other end fixed mounting has dog (380), dog (380) are located No. two drain pipes (310) inner chamber, distribution box main part (100) are located fixed sleeve (330) one side is installed another group of ventilation bars (3910), motor case (3920) are installed to one side, motor case (20) and another group of fan (260) are installed with another rotation axis (260) and are connected with another fan (260).
4. The intelligent distribution box for an internet of things-based distribution facility according to claim 3, wherein: a spring (390) is arranged between the movable plate (340) and one side of the inner cavity of the fixed sleeve (330), a hole is formed in one side of the inner cavity of the fixed sleeve (330), and the string (370) penetrates through the hole to the inner cavity of the second drain pipe (310).
5. An intelligent distribution box for an internet of things-based distribution facility according to claim 2 or 3, wherein: the other ends of the two groups of return pipes (210), the first water discharge pipe (230) and the second water discharge pipe (310) penetrate through the ground to the ground.
6. The intelligent distribution box for an internet of things-based distribution facility according to claim 1, wherein: the dust removal assembly (400) comprises two groups of filter screens (410) fixedly mounted on one side of the distribution box main body (100), connecting rods (420) are fixedly mounted on two groups of rotating shafts (260) close to one ends of the filter screens (410), brushes (430) are mounted on one sides of the two groups of connecting rods (420), and the brushes (430) are attached to one side of the filter screens (410).
7. The intelligent distribution box for an internet of things-based distribution facility according to claim 1, wherein: four groups of support columns (110) are arranged at four corners of the bottom of the distribution box main body (100), a bottom plate (120) is arranged at the bottom of each support column (110), and the bottom plate (120) is fixedly connected with the ground.
8. The intelligent distribution box for an internet of things-based distribution facility according to claim 1, wherein: the four sides at the top of the water storage tank (130) are respectively provided with a shielding plate (140), each group of shielding plates (140) is provided with two groups of fixing rods (150) at the bottom, and the other ends of the fixing rods (150) are fixedly connected with the water storage tank (130).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310293145.4A CN116191263A (en) | 2023-03-22 | 2023-03-22 | Intelligent distribution box for distribution facility based on Internet of things |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310293145.4A CN116191263A (en) | 2023-03-22 | 2023-03-22 | Intelligent distribution box for distribution facility based on Internet of things |
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| Publication Number | Publication Date |
|---|---|
| CN116191263A true CN116191263A (en) | 2023-05-30 |
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ID=86448966
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310293145.4A Pending CN116191263A (en) | 2023-03-22 | 2023-03-22 | Intelligent distribution box for distribution facility based on Internet of things |
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| Country | Link |
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| CN (1) | CN116191263A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117317868A (en) * | 2023-11-24 | 2023-12-29 | 南通机电实业发展有限公司 | Heat dissipation assembly for circuit board inside electrical cabinet |
-
2023
- 2023-03-22 CN CN202310293145.4A patent/CN116191263A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117317868A (en) * | 2023-11-24 | 2023-12-29 | 南通机电实业发展有限公司 | Heat dissipation assembly for circuit board inside electrical cabinet |
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